I've got a ScrollPane containing a TableView. The ScrollBars are hidden until you click the mouse on them. Since they are invisible you have to guess where to click to make them appear. It doesn't matter if the TableView has data in it or just the column headers. It doesn't matter if the ScrollBar policy is ALWAYS.
The vertical ScrollBar displays if you have a scroll mouse and scroll it, but you have to guess where horizontal ScrollBar is and click the mouse on it to make it appear.
How can I make the ScrollBars stay visible in a ScrollPane?
Related
Clicking the Previous, Next or Refresh button always resets the vertical scroll to the top of the resource list. Is there a way to preserve the vertical scroll position during refetch events?
I am using Semantic UI 2.1. I have a modal which displays pictures. The pictures are varying sizes. I then have nav buttons to move back and forth between the pictures. The modal wants to keep resizing/recentering itself as I move through the photos. What that means is the navigation buttons keep moving up and down so a user can't just click, click, click to move through the photos. They have to click, move mouse, click, move mouse, etc.
Is it possible to have the modal fixed to the top? I am happy for it to resize but at a fixed top position. That way the nav buttons will stay under the user's mouse cursor.
I have a QTableWidget with custom Widgets. These widgets are big and fill almost the whole scroll area in height, so that only one row is visible.
I can scroll with the mouse wheel or by dragging the scroll bar, but the row always jumps.
Is there a way to configure the QTableWidget to smoothly scroll, without jumping?
Try to use this:
view->setVerticalScrollMode(QAbstractItemView::ScrollPerPixel)
From Qt documentation:
enum ScrollMode { ScrollPerItem, ScrollPerPixel }
verticalScrollMode : ScrollMode
This property holds how the view scrolls its contents in the vertical
direction.
This property controls how the view scroll its contents vertically.
Scrolling can be done either per pixel or per item.
I'm having trouble adding a QScrollArea to a layout within a QDialog widget. When I add the scroll area to the layout, it appears where I want it with the widget I've assigned to it and it scrolls just fine. However, I am also left with a blank scroll area stuck to the top left of my dialog, as if I hadn't added the scroll area to the layout at all!
Why is this happening?
In my application I have an VBox control on top of another VBox that contains an Image control that loads a jpg from a URL (you can't see the bottom panel initially since it's underneath, but the image does fully download). When one clicks on the top VBox, the bottom one gets set to visible=false, then an effect causes the top VBox to vanish, then the bottom VBox is set to visible=true and an effect causes it to appear. Continuously clicking the VBoxes causes them to alternate appearing and disappearing. The problem is that the first time the bottom VBox appears, it flickers once when it draws. After that, there's no problem and it smoothly appears and disappears with the effect with no problem. It's as if the first time the bottom VBox appears, it flickers because even though the image has been downloaded, it has never been displayed before. Can I pre-buffer the image in the bottom VBox somehow to avoid this flicker?
See Ely Greenfield's demos # http://www.quietlyscheming.com/blog/2007/01/23/some-thoughts-on-doubt-on-flex-as-the-best-option-orhow-i-made-my-flex-images-stop-dancing/. Ely's the man.